甲、乙两数比是5:3,乙数比甲数少_%,乙数占两数和的_%.

问题描述:

甲、乙两数比是5:3,乙数比甲数少______%,乙数占两数和的______%.

设甲数是5,那么乙数就是3;
(5-3)÷5,
=2÷5,
=40%,
3÷(5+3),
=3÷8,
=37.5%
答:乙数比甲数少40%,乙数占两数和的37.5%.
故答案为:40,37.5.